#!/usr/bin/env node
function Bomb(){
  this.message="爆炸";
}
Bomb.prototype.explode=function(){ 
  console.log(this.message);
}
var b1=new Bomb();
var b2=new Bomb();
setTimeout(b1.explode.bind(Bomb),3000);
var timeID=setTimeout(b2.explode.bind(Bomb),3000);
b2.clear=function(){
  clearTimeout(timeID);
}
setTimeout(b2.explode.bind(clear),1000);
